Assertion (A) Deoxyribose, `C_(5)H_(10)O_(4)` is not a carbohydrate.
Reason (R) Carbohydrates are hydrates of carbon so compounds which follow `C_(x)(H_(2)O)_(y)` formula are carbohydrates.

Options

A. Assertion and reason both are correct statements and reason explains the assertion.
B. Both assertion and reason are wrong statements
C. Assertion is correct statement and reason is wrong statement.
D. Assertion is wrong statement and reason is correct statement.

Explanation

To solve the question, we need to analyze both the assertion and the reason provided.

### Step 1: Analyze the Assertion
The assertion states that deoxyribose, which has the molecular formula \(C_5H_{10}O_4\), is not a carbohydrate.

### Step 2: Understand Carbohydrates
Carbohydrates are generally defined as compounds that can be represented by the formula \(C_x(H_2O)_y\). This means they consist of carbon, hydrogen, and oxygen in a specific ratio. Common examples include glucose (\(C_6H_{12}O_6\)) and fructose, which fit this formula.

### Step 3: Examine Deoxyribose
Deoxyribose has the formula \(C_5H_{10}O_4\). We can rearrange this to see if it fits the carbohydrate formula:
- If we consider the ratio, \(C_5H_{10}O_4\) can be expressed as \(C_5(H_2O)_2\), which fits the general formula for carbohydrates.

### Step 4: Conclusion on Assertion
Since deoxyribose fits the criteria of a carbohydrate based on its chemical structure and behavior, the assertion that "deoxyribose is not a carbohydrate" is **false**.

### Step 5: Analyze the Reason
The reason states that carbohydrates are hydrates of carbon, and compounds that follow the formula \(C_x(H_2O)_y\) are carbohydrates.

### Step 6: Evaluate the Reason
While it is true that carbohydrates are often referred to as hydrates of carbon, not all compounds that fit the formula \(C_x(H_2O)_y\) are carbohydrates. For example, formaldehyde (\(CH_2O\)) fits this formula but is not classified as a carbohydrate. Therefore, the reason is also **false**.

### Final Conclusion
Both the assertion and the reason are incorrect. Therefore, the correct answer is that both the assertion and the reason are false.

### Summary of the Solution
- Assertion: Deoxyribose is not a carbohydrate (False)
- Reason: Carbohydrates follow the formula \(C_x(H_2O)_y\) (False)
- Conclusion: Both assertion and reason are false.